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iragen [17]
3 years ago
14

determine the constant of variation for the direct variation R varies directly with S is given 16, R is 80

Mathematics
1 answer:
valina [46]3 years ago
8 0

Answer:

5

Step-by-step explanation:

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You’ve been asked to order cake for your school dance. Here’s a formula for the scenario: z=xa/y
olga nikolaevna [1]

Answer:

The number of cake for order is 15 cakes .

Step-by-step explanation:

Given as :

Total number of people to attend the dance = x = 60

The number of slices each person will eat = A = 2 slices

The number of slices per cake = y = 8 slices

Let The number of cake for order = z

<u>Now, According to question</u>

Total slices of cake required for 60 people when each people eat 2 slices = total number of people × number of slices each person will eat

i.e Total slices of cake required for 60 people when each people eat 2 slices = x × A

Or, Total slices of cake required for 60 people when each people eat 2 slices = 60 × 2 slices

Or,Total slices of cake required for 60 people when each people eat 2 slices = 120 slices

<u>Again</u>

∵ number of slices per cake = 8

∴ The number of cake for order = \dfrac{\textrm Total slices of cake required for 60 people when each people eat 2 slices}{\textrm number of slices per cake }

Or, z = \frac{x\times A}{y}

i.e z = \frac{120}{8}

∴   z = 15 cakes

So,The number of cake for order = z = 15 cakes

Hence,The number of cake for order is 15 cakes . Answer

7 0
3 years ago
Find c and round to the nearest tenth
Makovka662 [10]

Answer:

Step-by-step explanation:

<C = ?

a = 22

b = 20

c = 18

Formula

c^2 = a^2 + b^2 - 2*a*b* cos(C)

Solution

18^2 = 22^2 + 20^2 - 2*22*20*cos(C)

324 = 484 + 400 - 880*cos(C)

324 = 884 - 880*Cos(C)

-560 = - 880 * cos(C)              

-560 / - 880 = cos(C)

0.63636   =  cos(C)

C = cos-1(0.63636)

C =50.48

6 0
3 years ago
Read 2 more answers
How can you add decimals without a place-value chart to make sure you are adding
Semmy [17]

Answer:

You can make sure that you align the decimal dots together.

Step-by-step explanation:

34.5

24.650

You can see that the decimal dot is aligned.

6 0
3 years ago
1. What is 1/6 plus 2/6?<br><br> 2. What is 4/8 plus 1/8?<br><br> 3. What is 2/3 plus 2/3?
Anon25 [30]
<span>1. What is 1/6 plus 2/6?
          1/6 + 2/6 = 3/6 =1/2

2. What is 4/8 plus 1/8?
           4/8 + 1/8 = 5/8

3. What is 2/3 plus 2/3?
          2/3 + 2/3 = 4/3 = 1 1/3</span>
3 0
3 years ago
Read 2 more answers
64 less than y is no less than −128 Written in interval notation
Vilka [71]

Answer:

y\in [-64,\infty) .

Step-by-step explanation:

The given statement is "64 less than y is no less than −128". It means 64 less than y is greater than or equal to −128.

y-64\geq -128

Add 64 both sides.

y-64+64\geq -128+64

y\geq -64

It means possible value of y is greater than or equal to -64.

y\in [-64,\infty)

Therefore, the required interval is [-64,\infty).

4 0
3 years ago
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